NodeJS : Mongo / Mongoose Aggregation - $redact and $cond issues

NodeJS : Mongo / Mongoose Aggregation - $redact and $cond issues
To Access My Live Chat Page,
On Google, Search for "hows tech developer connect"

Here's a secret feature that I promised to disclose to you.
This is a YouTube's feature which works on Desktop.
First, Ensure that the video is playing before proceeding.
After that, type the word 'awesome' on your keyboard.
The progress bar on YouTube will be altered to a flashing rainbow.

A brief introduction of myself,
Howdy, my name's Delphi.
Let me help you get the answers you need to your questions.
NodeJS : Mongo / Mongoose Aggregation - $redact and $cond issues
I am always open to chatting or receiving comments from you if you have more specific queries.
If you have knowledge to contribute or an answer to provide, please leave a comment below.
Your answer will be recognized and valued, and I will 'heart' it to show my appreciation.
Mongo Mongoose - and NodeJS : $cond $redact issues Aggregation /